Although erase is often used as a synonym for wipe, that term is a little misleading -- it isn't possible to actually erase hard drive data. Deleting a file only removes the file listing, which serves as a shortcut. The data is still on the computer and easily accessible to anyone with the right program and/or know-how.
First developed by Tim Berners-Lee in 1990, HTML is short for HyperText Markup Language. HTML is used to create electronic documents (called pages) that are displayed on the World Wide Web.
JSP is a technology used for creating dynamically generated web pages. The result of the page, with JSP technology, is mostly in an HTML form if it uses HTML tags. So, it is likely that HTML is an instrument of JSP technology to make it work. In order to use JSP for your web page, you must also be familiar with HTML.